采用高阶矩量法分析LPDA电磁特性  

The Analysis of LPDA EM Characteristics Based on High Order MoM

作　　者：焦光龙[1,2] 李树彬[1] 白渭雄[1] 

机构地区：[1]空军工程大学导弹学院,陕西三原713800 [2]东南大学毫米波国家重点实验室,江苏南京210096

出　　处：《空军工程大学学报（自然科学版）》2009年第6期50-53,共4页Journal of Air Force Engineering University(Natural Science Edition)

基　　金：毫米波国家重点实验室开放课题资助项目(K200818K200907)

摘　　要：采用高阶矩量法研究对数周期天线的电磁特性;首先借助广义导线截锥体几何建模技术对天线进行线剖分,再依据电磁场边界条件在天线表面建立电场积分方程,最后用基于混合域基函数的高阶矩量法对其离散求解;仿真验证表明,此方法简单易行、结果精确,与传统的分域基矩量法相比,大大减少了未知数个数,而且不失精度;高阶矩量法是一种切实可行的高效电磁场数值计算方法,在分析相关辐射问题时具有一定的应用价值和理论意义。The electromagnetic （EM） characteristics of log - periodic antenna （LPDA） are studied by adopting high order Method of Moment （MoM）. Firstly, the antenna is segmented via generalized wire geometrical modeling. Then, electric field integral equations are formed based on EM boundary conditions. Finally, by virtue of high order MoM in which mixed -domain basis functions are adopted, the equations are made discrete and solved. The results of simulation show that this method is simple, accurate and has some practical value and theoretical meanings

关 键 词：对数周期天线 电磁特性 混合域基 高阶矩量法 

分 类 号：TN011[电子电信—物理电子学]